<template>
	<div>
		<!-- 面包屑 -->
		<el-breadcrumb separator-class="el-icon-arrow-right">
			<el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
			<el-breadcrumb-item>数据统计</el-breadcrumb-item>
			<el-breadcrumb-item>数据报表</el-breadcrumb-item>
		</el-breadcrumb>
		<!-- 卡片视图 -->
		<el-card>
			<!-- 为ECharts准备一个具备大小（宽高）的Dom -->
			<div id="main" style="width: 750px;height:400px;"></div>
		</el-card>
	</div>
</template>

<script>
import echarts from 'echarts';
import _ from 'lodash';
export default {
	data() {
		return {
			//需要合并操作
			options: {
				title: {
					text: '用户来源'
				},
				tooltip: {
					trigger: 'axis',
					axisPointer: {
						type: 'cross',
						label: {
							backgroundColor: '#E9EEF3'
						}
					}
				},
				grid: {
					left: '3%',
					right: '4%',
					bottom: '3%',
					containLabel: true
				},
				xAxis: [
					{
						boundaryGap: false
					}
				],
				yAxis: [
					{
						type: 'value'
					}
				]
			}
		};
	},
	created() {},
	//页面上的元素已经被渲染完毕了
	async mounted() {
		// 基于准备好的dom，初始化echarts实例
		let myChart = echarts.init(document.getElementById('main'));
		const { data: res } = await this.$http.get('reports/type/1');
		if (res.meta.status !== 200) return this.$message.error('获取折线图数据失败');
		this.$message.success('获取折线图数据成功');
		console.log(res.data);
		// 指定图表的配置项和数据
		// let option = {
		//     title: {
		//         text: 'ECharts 入门示例'
		//     },
		//     tooltip: {},
		//     legend: {
		//         data:['销量']
		//     },
		//     xAxis: {
		//         data: ["衬衫","羊毛衫","雪纺衫","裤子","高跟鞋","袜子"]
		//     },
		//     yAxis: {},
		//     series: [{
		//         name: '销量',
		//         type: 'bar',
		//         data: [5, 20, 36, 10, 10, 20]
		//     }]
		// };

		// 准备数据和配置项
		const result = _.merge(res.data, this.options);
		// 使用刚指定的配置项和数据显示图表。
		myChart.setOption(result);
	},
	methods: {}
};
</script>

<style lang="less" scoped></style>
